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CN110307093A - The control device of internal combustion engine - Google Patents

The control device of internal combustion engine Download PDF

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Publication number
CN110307093A
CN110307093A CN201910188641.7A CN201910188641A CN110307093A CN 110307093 A CN110307093 A CN 110307093A CN 201910188641 A CN201910188641 A CN 201910188641A CN 110307093 A CN110307093 A CN 110307093A
Authority
CN
China
Prior art keywords
internal combustion
combustion engine
engine
air volume
automatically stopped
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201910188641.7A
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Chinese (zh)
Inventor
安形昌也
镰田修次
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of CN110307093A publication Critical patent/CN110307093A/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D9/00Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

The present invention provides a kind of control device of internal combustion engine, can be rotated rapidly in the case where having used output small starting unit in automatic restarting.The control device of engine has: starter-generator;It is automatically stopped starting unit, is automatically stopped engine, then by driving starter-generator come automatic restarting engine;Air throttle;And inhaled air volume control unit, the inhaled air volume of engine is controlled by operation air throttle.From during being automatically stopped engine and play automatic restarting engine before engine speed becomes 0, inhaled air volume control unit controls inhaled air volume, so that be less than the torque that is generated by starter-generator across torque, it is described across torque be the torque needed in automatic restarting in order to make engine be transferred to expansion stroke from compression stroke.

Description

The control device of internal combustion engine
Technical field
The present invention relates to the control devices of internal combustion engine.In more detail, being related to having is automatically stopped internal combustion engine or automatically The control device of the internal combustion engine for being automatically stopped starting device of restarting.
Background technique
Many has so-called idle stop function equipped with the vehicle of internal combustion engine, to inhibit the fuel consumption in internal combustion engine (for example, referring to patent document 1).Idle stop function refers to such function: when being automatically stopped request as defined in produce, It is automatically stopped internal combustion engine by stopping fuel injection, then, is restarted when producing defined automatic restarting request Fuel injection simultaneously carries out Kick-start by starter, to make the automatic restarting of internal combustion engine.
In the control method of the idle stop shown in patent document 1, when being automatically stopped internal combustion engine, firstly, because closing After closing air throttle and increasing the pumping loss generated in cylinder, by making piston in defined opportunity opening throttle Stop at the position far from top dead centre, the position being more specifically off near -120 ° before top dead centre.According to patent text The control method for offering 1 can be improved the recoil in automatic restarting and rise by making piston stop at the position far from top dead centre In-cylinder pressure after dynamic at initial top dead centre, therefore it is easy to light injection fuel, and then be able to suppress automatic restarting Delay.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2014-1684 bulletin
In recent years, there is a situation where such: even if vehicle does not stop, being automatically stopped internal combustion engine or automatic restarting. More specifically, start being automatically stopped for internal combustion engine when speed is not 0, then, before the revolving speed of internal combustion engine becomes 0, lead to The pedal of stepping on or step on the throttle that brake pedal is released by driver is crossed, thus producing the feelings such as automatic restarting request Under condition, make the automatic restarting of internal combustion engine to respond the request immediately before the revolving speed of internal combustion engine becomes 0.
However, when making engine starting, what starter required is before and after the revolving speed of internal combustion engine becomes 0 across torque Different.Here, refer to across torque, when being started by starter, in order to across first compression stroke, be transferred to Expansion stroke and the torque for needing to pass to crankshaft.Since the pressure when piston reaches top dead centre in cylinder becomes maximum, because This, piston reach top dead centre when in-cylinder pressure it is bigger, then across torque it is bigger.
Fig. 8 be show from issuing torque command to starter the stroke amount of piston until reaching top dead centre with for the first time The figure of the correlativity between the in-cylinder pressure at top dead centre when compression.In fig. 8, usual automatic restarting is indicated with circle (revolving speed of internal combustion engine become 0 after automatic restarting) indicates that (internal combustion engine turns for automatic restarting in rotation with quadrangle mark Speed become 0 before automatic restarting).As shown in figure 8, usually automatic restarting when first-time compression when top dead centre at cylinder Interior pressure substantially proportionally prolongs growth with the stroke amount of piston.That is, also basic across torque when usual automatic restarting The upper stroke amount with piston proportionally increases.This is because the gas flow being compressed by pistons also increases as stroke amount increases Add.
In contrast, even if stroke amount is short, in the cylinder at top dead centre when first-time compression in rotation when automatic restarting Pressure, i.e. in rotation when automatic restarting across torque also than usual automatic restarting when it is big.This is because in rotation certainly In the case where dynamic restarting, the gas in cylinder is not escaped from valve or piston ring completely, and in-cylinder pressure is big.
As described above, in rotation when automatic restarting, across torque ratio usually automatic restarting when it is big.Therefore, when making When with exporting small starter, there is starting internal combustion engine, there is a situation where postpone.
Summary of the invention
The object of the present invention is to provide a kind of control devices of internal combustion engine, even if using the feelings for exporting small starting unit Under condition, also can quickly and reliably be rotated in automatic restarting.
(1) control device (for example, aftermentioned control device 2) of internal combustion engine of the invention (for example, aftermentioned engine 1) Have: starting unit (for example, aftermentioned starter-generator 52) revolves the crankshaft (for example, aftermentioned crankshaft 17) of internal combustion engine Turn;It is automatically stopped starting unit (for example, aftermentioned be automatically stopped starting portion 82), is producing the case where being automatically stopped request Under be automatically stopped the internal combustion engine, then, in the case where producing the request of automatic restarting by driving the starting unit Carry out internal combustion engine described in automatic restarting;Inhaled air volume adjustment mechanism is (for example, aftermentioned air throttle 33, inlet valve 15, exhaust valve 16, air inlet side changeable air valve timing lift mechanisms 18i and exhaust side variable valve timing lift mechanisms 19e), adjustment sucking To the air capacity in the internal combustion engine;And inhaled air volume control unit (for example, aftermentioned inhaled air volume control unit 83), It controls the inhaled air volume of the internal combustion engine, the control of the internal combustion engine by operating the inhaled air volume adjustment mechanism Device is characterized in that, is being from being automatically stopped the internal combustion engine and play automatic restarting internal combustion engine before revolving speed becomes 0 During only, the inhaled air volume control unit controls inhaled air volume, so that described interior in order to make in automatic restarting The torque that combustion engine is transferred to expansion stroke from compression stroke and needs is less than the torque generated by the starting unit.
(2) in this case, it is preferred that the inhaled air volume adjustment mechanism has valve body (for example, aftermentioned air throttle 33, inlet valve 15 and exhaust valve 16), which adjusts inhaled air volume by change aperture, described from being automatically stopped Internal combustion engine play revolving speed and become 0 until during or from be automatically stopped the internal combustion engine play it is automatic before revolving speed becomes 0 During until internal combustion engine described in restarting, the inhaled air volume control unit keeps the valve body substantially fully closed.
(3) in this case, it is preferred that the inhaled air volume adjustment mechanism is the section being arranged in the charge air flow path Valve (for example, aftermentioned air throttle 33), before revolving speed becomes 0 in the case where internal combustion engine described in automatic restarting, the suction Enter air capacity control unit and operate the air throttle, so that the aperture of the air throttle becomes target aperture (for example, aftermentioned 2nd target aperture when dynamic), the target aperture obtains in order to described in the starting from revolving speed is 0 relative to being determined to be capable of Internal combustion engine and the aperture (for example, the 1st target aperture when aftermentioned starting) of inhaled air volume needed is set in opening side.
(4) in this case, it is preferred that the control device of the internal combustion engine is also equipped with air inlet pressure sensor (after for example, The air inlet pressure sensor 43 stated), the air inlet pressure sensor to the admission pressure as the pressure in the charge air flow path into Row detection, before revolving speed becomes 0 in the case where internal combustion engine described in automatic restarting, the inhaled air volume control unit operation The air throttle, so that target inlet air pressure when becoming restarting by the admission pressure that the air inlet pressure sensor detects, When the restarting target inlet air pressure be determined to be greater than in order to start the internal combustion engine from revolving speed is 0 and need into Atmospheric pressure.
(5) in this case, it is preferred that the starting unit is to be able to carry out the starting of the internal combustion engine and be utilized The starter-generator (for example, aftermentioned starter-generator 52) of the power generation of the driving force generated by the internal combustion engine.
The effect of invention
(1) as noted previously, as to internal combustion engine rotate in automatic restarting when cross over torque and in-cylinder pressure phase It closes, therefore also related to the inhaled air volume of internal combustion engine.Therefore, in the present invention, playing at this from being automatically stopped internal combustion engine During the revolving speed of internal combustion engine becomes before 0 until automatic restarting internal combustion engine, in other words, played being automatically stopped internal combustion engine To internal combustion engine rotate in until automatic restarting during, inhaled air volume control unit controls inhaled air volume so that The torque needed in automatic restarting in order to make internal combustion engine be transferred to expansion stroke from compression stroke is (that is, above-mentioned across torsion Square) it is less than the torque generated by starting unit.Even if can also be rung using small starting unit is exported as a result, It should be requested in automatic restarting and automatic restarting in being rotated to internal combustion engine rapidly.
(2) in the present invention, during from being automatically stopped until internal combustion engine plays revolving speed to become 0 or from being automatically stopped During internal combustion engine plays before revolving speed becomes 0 until automatic restarting internal combustion engine, inhaled air volume control unit makes valve body It is substantially fully closed.When keeping valve body substantially fully closed, in-cylinder pressure can be greatly reduced rapidly, and then can reduce across torque.By This, in accordance with the invention it is possible in response to automatic restarting request and rapidly to internal combustion engine rotate in automatic restarting.This Outside, by keeping valve body fully closed, as far as possible reduce cross over torque, correspondingly, be able to use output it is small, i.e. it is light inexpensively Component is as starting unit.
(3) in the present invention, by using air throttle as inhaled air volume adjustment mechanism, compared to using changeable air valve The situation of timing mechanism etc. can quickly change inhaled air volume, and then can also reduce across torque, therefore, can ring It should be requested in automatic restarting and start internal combustion engine rapidly.In addition, before revolving speed becomes 0 the case where automatic restarting internal combustion engine Under, air throttle is operated, so that the aperture of air throttle becomes target aperture, the target aperture is set to than usually restarting automatically Aperture when dynamic leans on opening side.Thus, it is possible to be rapidly provided the air of the amount needed to start to internal combustion engine.
(4) in the present invention, before revolving speed becomes 0 in the case where automatic restarting internal combustion engine, inhaled air volume control Unit operates air throttle, so that target inlet air pressure when becoming restarting by the admission pressure that air inlet pressure sensor detects, When the restarting target inlet air pressure be determined to be greater than in order to from revolving speed be 0 start internal combustion engine and need it is any into Atmospheric pressure.In this way, by operating air throttle, being confirmed as so that becoming in being rotated to internal combustion engine when automatic restarting Target inlet air pressure when the restarting of required admission pressure when greater than usual automatic restarting, so as to rapidly to internal combustion engine Supply the air of the amount needed to start.
(5) in the present invention, using the starting for being able to carry out internal combustion engine and the power generation for the power that internal combustion engine is utilized Starter-generator is as starting unit.As a result, compared to use the common starter for the function of not having generator as start It the case where unit, being capable of promptly automatic restarting internal combustion engine.
Detailed description of the invention
Fig. 1 is the figure for showing the structure of engine and its control device of an embodiment of the invention.
Fig. 2 is the figure for showing the structural example of power-supply system.
Fig. 3 is the flow chart for showing the update processing for the I/S mark being automatically stopped in starting conditions determination unit of ECU.
Fig. 4 be show ECU being automatically stopped of the engine being automatically stopped in starting portion/automatic restarting processing it is specific The flow chart of step.
Fig. 5 is the flow chart for showing the specific steps of inhaled air volume control processing of the inhaled air volume control unit of ECU.
Fig. 6 is the timing diagram for showing the control example of ECU.
Fig. 7 is the timing diagram for showing the control example of ECU.
Fig. 8 be show from issuing torque command to starter the stroke amount of piston until reaching top dead centre with for the first time The figure of the correlativity between the in-cylinder pressure at top dead centre when compression.
Label declaration
1: engine (internal combustion engine);
15: inlet valve (inhaled air volume adjustment mechanism);
16: exhaust valve (inhaled air volume adjustment mechanism);
17: crankshaft;
18i: air inlet side changeable air valve timing lift mechanisms (inhaled air volume adjustment mechanism);
19e: exhaust side variable valve timing lift mechanisms (inhaled air volume adjustment mechanism);
2: control device;
33: air throttle (inhaled air volume adjustment mechanism);
43: air inlet pressure sensor;
52: starter-generator (starting unit);
8:ECU;
81: being automatically stopped restarting condition criterion portion;
82: being automatically stopped starting portion (being automatically stopped starting unit);
83: inhaled air volume control unit (inhaled air volume control unit)
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to an embodiment of the invention.
Fig. 1 is the structure for showing the internal combustion engine (hereinafter referred to as " engine 1 ") and its control device 2 of present embodiment Figure.These engines 1 and control device 2 are equipped on the vehicle (not shown) at least using engine 1 as power generation source.
Engine 1 is the multi-cylinder gasoline engine for having multiple cylinders 11 (one is only illustrated in Fig. 1).Engine 1 has It is standby: to be set to the piston 12 of each cylinder 11;It is set to the fuel injection valve 13 and spark plug 14 of each cylinder 11;Be set to The inlet valve 15 for the air inlet that each cylinder 11 is connected to;It is set to the exhaust valve 16 for the exhaust outlet being connected to each cylinder 11;With And the crankshaft 17 being coupled via connecting rod with piston 12.
In addition, being equipped with admission cam shaft 18 and exhaust cam shaft 19 in engine 1, the admission cam shaft 18 and exhaust are convex Wheel shaft 19 is coupled via synchronous belt with crankshaft 17, rotates with the rotation of crankshaft 17.More specifically, when crankshaft 17 rotates two Zhou Shi, camshaft 18,19 rotate a circle.It is convex that the air inlet that driving is opened and closed to inlet valve 15 is equipped in admission cam shaft 18 Wheel is equipped with the exhaust cam for exhaust valve 16 being opened and closed driving in exhaust cam shaft 19.As a result, when camshaft 18,19 revolves When turning, inlet valve 15 and exhaust valve 16 are with form corresponding with the profile for the cam for being set to camshaft 18,19 advance and retreat (opening and closing).
It is equipped with air inlet side changeable air valve timing lift mechanisms 18i in the one end side of admission cam shaft 18, which can Air valve variation timing lift mechanisms 18i changes admission cam relative to the cam phase of crankshaft 17 and the lift amount of inlet valve 15.This Outside, exhaust side variable valve timing lift mechanisms 19e, the exhaust side variable valve are equipped in the one end side of exhaust cam shaft 19 Timing lift mechanisms 19e changes exhaust cam relative to the cam phase of crankshaft 17 and the lift amount of exhaust valve 16.
In addition, engine 1 has: air inlet pipe 31 guides air to the air inlet of engine 1;Exhaust pipe 32, from hair The exhaust gas of the exhaust outlet outflow of motivation 1 flows in the exhaust pipe 32;Air throttle 33 is set in air inlet pipe 31;Starter 51 and starter-generator 52, they are coupled through not shown power transfer mechanism with the crankshaft of engine 1 17;Power-supply system Giving and accepting for electric power is carried out between 6, with these starters 51 and starter-generator 52;And electronic control unit 8 is (used below " ECU 8 " this abbreviation), control engine 1, air throttle 33, starter 51, starter-generator 52 and power-supply system 6 etc..
Air throttle 33 is the solenoid valve being set in air inlet pipe 31 in a manner of it can be opened and closed, via actuator 34 and ECU 8 connections.Solar term are adjusted by being supplied from battery (not shown) to the duty ratio of the driving current of actuator 34 by the control of ECU 8 The aperture of door 33.Control inhaled air volume by the aperture for operating air throttle 33 by ECU 8, the inhaled air volume be via into Tracheae 31 is supplied to the amount of the air in the cylinder 11 of engine 1.
Starter 51 is coupled with crankshaft 17, when supplying driving current from power-supply system 6, rotates crankshaft 17.When by driving When the person of sailing operates ignition switch (not shown), ECU 8 rotates crankshaft 17 using starter 51, starts simultaneously at using fuel injection The fuel injection control of valve 13 and the ignition control for using spark plug 14, so that engine 1 be made to start.
Starter-generator 52 is coupled via power transfer mechanisms (not shown) such as band or subband wheels with crankshaft 17.Start hair Motor 52 has the function as following starter: when supplying driving current from power-supply system 6, rotating crankshaft 17, starts Engine 1.In addition, starter-generator 52 is also equipped with the function as following generator: starter-generator 52 by crankshaft 17 into It generates electricity when row rotation driving, by the power supply issued to power-supply system 6.That is, starter-generator 52 is to have both starting The function of device and generator, referred to as so-called ISG (Integrated Starter Generator: integrated actuating power generation Machine) starter-generator.
In addition, being additionally provided with multiple sensors 41~43 of the state for detecting engine 1 in vehicle V.
The throttle opening of 41 pairs of the engine load sensor apertures as air throttle 33 detects, and will be with detection It is worth corresponding signal and is sent to ECU 8.ECU 8 using the feedback control of the detected value based on the engine load sensor 41 come Air throttle 33 is operated, so that the aperture of air throttle 33 becomes defined target aperture.
Crankshaft angle sensor 42 in response to the impulse generator being fixed on crankshaft 17 rotation and every defined crankshaft Angular ECU 8 sends pulse signal.In ECU 8, started according to the pulse signal from the crankshaft angle sensor 42 to grasp The engine speed of machine 1.
Air inlet pressure sensor 43 is set to the position of 33 downstream of ratio air throttle in air inlet pipe 31, to air inlet pipe 31 Interior pressure is detected, and sends signal corresponding with detected value to ECU 8.ECU 8 can also be using based on the air inlet pressure The feedback control of the detected value of force snesor 43 operates air throttle 33.
Fig. 2 is the figure for showing the structure for the power-supply system 6 for being equipped on vehicle.Power-supply system 6 is to being equipped on the various of vehicle Electrical load 61,62, starter 51 and starter-generator 52 supply electric power or starter-generator 52 will be used to issue Power charge is into battery 63,64.
Power-supply system 6 has the 1st battery 63, the 2nd battery 64 and the battery module 7 with the 2nd battery 64.
Starter-generator 52 is connect with the 1st input and output terminal 71 of battery module 7.When from the 1st input and output terminal 71 When supplying driving current, starter-generator 52 carries out rotation driving to crankshaft 17, starts engine 1.In addition, from engine 1 Starter-generator 52 export generation current via the 1st input and output terminal 71 be supplied to the 1st battery 63, the 2nd battery 64, 1st electrical load 61 and the 2nd electrical load 62 etc..
1st electrical load 61 mainly include be equipped in the electronic equipment of vehicle be not configured to make vehicle driving and it is required Equipment, such as stereo set.In contrast, the 2nd electrical load 62 mainly includes being equipped in the electronic equipment of vehicle In order to make vehicle driving and required equipment, electronic control unit such as the driving device of electric power steering, ECU 8 etc..
1st battery 63 is to can be carried out that chemical energy is converted to the electric discharge of electric energy and converts electrical energy into filling for chemical energy The secondary cell of electricity.In the following contents, lead is used for the so-called lead storage battery of electrode as the 1st battery 63 to having used The case where be illustrated, but the invention is not restricted to this.
1st battery 63 is connect via battery module 7 with starter-generator 52 and the 2nd electrical load 62.More specifically, 1 battery 63 is connect with the 2nd input and output terminal 72 of battery module 7, can via the battery module 7 and starter-generator 52 it Between charge and discharge or discharge to the 2nd electrical load 62.
In addition, starter 51 and the 1st electrical load 61 lean on the 1st battery in the 2nd input and output terminal 72 than battery module 7 The position of 63 sides is connect with the 1st battery 63.When supplying driving current from the 1st battery 63, starter 51 revolves crankshaft 17 Turn driving, starts engine 1.
Battery module 7 has the 1st input and output terminal 71, the 2nd input and output terminal 72, output terminal 73, the 1st supply lines 74, the 2nd supply lines 75, the 3rd supply lines 76, the 4th supply lines 77, the 1st switch SW1, the 2nd switch SW2, the 3rd switch SW3, the 4th are opened Close SW4 and the 2nd battery 64.
2nd battery 64 is identical as the 1st battery 63, is all executable secondary cell of electric discharge and charging.In the following contents, The so-called lithium-ions battery of charge and discharge is carried out as the 2nd battery 64 in interelectrode movement by lithium ion to using The case where be illustrated, but the invention is not restricted to this.
The 1st input and output terminal 71 and the 2nd battery 64 that 1st supply lines 74 connection starter-generator 52 is connected.It starts Generator 52 and the 2nd battery 64 are connected via the 1st supply lines 74.
2nd supply lines 75 connects the 2nd input and output terminal 72 and the 1st supply lines 74 that the 1st battery 63 is connected.In addition, In the following contents, the part connecting with the 2nd supply lines 75 in the 1st supply lines 74 is particularly called merging part 78.Start hair Motor 52 and the 1st battery 63 are via the section and from the 1st input and output terminal 71 to merging part 78 in the 1st supply lines 74 2 supply lines 75 and be connected.As described above, the 1st battery 63 and the 2nd battery 64 be by these supply lines 74,75 respectively with rise Dynamic generator 52 is connected in parallel.
Output terminal 73 is connect with the 2nd electrical load 62.3rd supply lines 76 connects the ratio merging part in the 1st supply lines 74 78 side and output terminal 73 by the 2nd battery 64.The 2nd battery 64 is supplied to the 2nd electrical load 62 via the 3rd supply lines 76 Electric power.4th supply lines 77 connects the 2nd supply lines 75 and output terminal 73.As a result, in addition to as described above to the 2nd electrical load Except the electric power of 62 the 2nd batteries 64 of supply, the electric power of the 1st battery 63 can also be supplied via the 4th supply lines 77.
The part that the ratio that 1st switch SW1 is arranged in the 2nd supply lines 75 is connect with the 4th supply lines 77 is by merging part 78 Side.1st switch SW1 connects (ON) according to the command signal from ECU 8 or disconnects (OFF) as connection 64 He of the 2nd battery 1st supply lines 74 of the charge-discharge circuit of starter-generator 52 and the 1st battery 63.Therefore, ECU 8 is for example utilizing starting-generating When machine 52 charging to the 1st battery 63 or using the 1st battery 63 driving starter-generator 52, the 1st switch SW1 is connected.
The merging part 78 and be connected between the part of the 3rd supply lines 76 that 2nd switch SW2 is arranged in the 1st supply lines 74. 2nd switch SW2 connects (ON) according to the command signal from ECU 8 or disconnects (OFF) the 2nd battery 64 and starter-generator 52. Therefore, ECU 8 is for example driven when being charged using starter-generator 52 to the 2nd battery 64 or using the 2nd battery 64 When dynamic generator 52, the 2nd switch SW2 is connected.
3rd switch SW3 is arranged on the 3rd supply lines 76.3rd switch SW3 is connected according to the command signal from ECU 8 (ON) (OFF) the 2nd battery 64 and the 2nd electrical load 62 are disconnected or.Therefore, ECU 8 is for example allowing from the 2nd battery 64 to the 2nd The 3rd switch SW3 is connected when electrical load 62 discharges, and the 3rd is disconnected when forbidding discharging from the 2nd battery 64 to the 2nd electrical load 62 Switch SW3.
4th switch SW4 is arranged on the 4th supply lines 77.4th switch SW4 is connected according to the command signal from ECU 8 (ON) (OFF) the 1st battery 63 and the 2nd electrical load 62 are disconnected or.Therefore, for example allowing from the 1st battery 63 to the in ECU 8 The 4th switch SW3 is connected when 2 electrical loads 62 discharge, and the 4th is disconnected when forbidding discharging from the 1st battery 63 to the 2nd electrical load 62 Switch SW4.
As described above, according to battery module 7, by using two switches SW1, SW2, two 63,64, battery can be used The driving power of meaning switching starter-generator 52, in addition, two batteries 63,64 can be used by using two switches SW3, SW4 Arbitrarily switch the driving power of the 2nd electrical load 62.
Fig. 1 is returned to, ECU 8 is the microcomputer for synthetically undertaking the traveling control of vehicle V.In Fig. 1, only diagram is logical Cross the module of being automatically stopped of engine 1 involved in the module of the realization of ECU 8/automatic restarting control execution.
In ECU 8, as the module of being automatically stopped of engine 1/automatic restarting control execution is related to, composition has Following part: being automatically stopped restarting condition criterion portion 81, executes aftermentioned I/S mark update processing shown in Fig. 3;Automatically Stop portion 82, and execute aftermentioned engine shown in Fig. 41 is automatically stopped/restarting processing automatically;And sucking is empty Tolerance control unit 83 executes aftermentioned inhaled air volume control processing shown in fig. 5.
Fig. 3 is the process for showing the update processing for the I/S mark being automatically stopped in restarting condition criterion portion 81 of ECU 8 Figure.I/S mark is to indicate whether in the mark for the self-braking state for having requested that engine 1, can take " 0 " or " 1 " Value.As described below, ECU 8 is generating when being automatically stopped request of engine 1, and the I/S value indicated is set from " 0 " In the automatic restarting request for generating engine 1, the I/S value indicated is then reset to " 0 " from " 1 " for " 1 ".Automatic Stop in restarting condition criterion portion 81, executes the update processing of the I/S mark of Fig. 3 repeatedly with the defined control period.
Firstly, being automatically stopped restarting condition criterion portion 81 in S1 and determining whether the value of I/S mark is " 0 ".When S1's When determining result for "Yes", that is, when being during engine 1 starts, be automatically stopped restarting condition criterion portion 81 and be transferred to S2, be When "No", that is, when being that engine 1 is automatically stopped middle, be automatically stopped restarting condition criterion portion 81 and be transferred to S4.
In S2, it is automatically stopped restarting condition criterion portion 81 and determines whether automatic stop condition is true.Here, as certainly Dynamic stop condition, it can be cited for example that the speed of vehicle V be less than or equal to defined value, gas pedal step on be released from, with And brake pedal has been operated.When the judgement result of S2 is "Yes", that is, when automatic stop condition is set up, be automatically stopped Restarting condition criterion portion 81 in order to engine 1 is explicitly shown be automatically stopped request generated the case where and by I/S mark Value is changed to " 1 " (referring to S3) from " 0 ".As a result, as below referring to as being illustrated Fig. 4, using being automatically stopped starting portion 82 are automatically stopped engine 1.In addition, being automatically stopped restarting condition criterion portion 81 when the judgement result of S2 is "No" and existing The I/S value indicated is maintained to the processing of end Fig. 3 in the state of " 0 ".
In S4, it is automatically stopped restarting condition criterion portion 81 and determines whether automatic restarting condition is true.Here, as Automatic restarting condition, it can be cited for example that gas pedal has been operated and stepping on for brake pedal has been released from.Work as S4 Judgement result for "Yes" when, be automatically stopped restarting condition criterion portion 81 and asked in order to which automatic restarting is explicitly shown to engine 1 It asks the case where having generated and the value of I/S mark is changed to " 0 " (referring to S5) from " 1 ".As a result, as carried out below referring to Fig. 4 As explanation, make the automatic restarting of engine 1 using starting portion 82 is automatically stopped.In addition, the judgement result as S4 is "No" When, be automatically stopped restarting condition criterion portion 81 terminates the processing of Fig. 3 in the state that the value for indicating I/S maintains " 1 ".
Fig. 4 is being automatically stopped of the engine 1 being automatically stopped in the starting portion 82/automatic restarting processing for showing ECU 8 Specific steps flow chart.In being automatically stopped starting portion 82, stopping automatically for Fig. 4 is executed repeatedly with the defined control period Only/restarting processing.
Firstly, being automatically stopped starting portion 82 in S11 and determining whether the value of I/S mark is " 1 ".When the judgement result of S11 When for "No", that is, when being during engine 1 starts, be automatically stopped starting portion 82 and be transferred to S18.When the judgement result of S11 is When "Yes", that is, when being that engine 1 is automatically stopped middle, be automatically stopped starting portion 82 and be transferred to S12.
In S12, it is automatically stopped starting portion 82 and determines during control period of the control period from last time to this Whether the value of I/S mark has been changed to " 1 " from " 0 ", in other words, determines whether and just produces being automatically stopped for engine 1 After request.When the judgement result of S12 is "Yes", it is automatically stopped starting portion 82 and is transferred to S13, stop the fuel of engine 1 Thus injection control and ignition control start being automatically stopped for engine 1, then, terminate being automatically stopped/restarting automatically for Fig. 4 Dynamic processing.In addition, when the judgement result of S12 is "No", that is, when be in above-mentioned S13 start engine 1 be automatically stopped it When afterwards, be automatically stopped the end of starting portion 82 Fig. 4 is automatically stopped/restarting processing automatically.
In S18, it is automatically stopped starting portion 82 and determines during control period of the control period from last time to this Whether the value of I/S mark has been changed to " 0 " from " 1 ", in other words, determines whether and just produces restarting automatically for engine 1 After dynamic request.When the judgement result of S18 is "Yes", it is automatically stopped starting portion 82 and is transferred to S19.In S19, it is automatically stopped Starting portion 82 powers on the SW2 of system 6, and driving current is supplied from the 2nd battery 64 to starter-generator 52, thus using starting Generator 52 carries out the Kick-start of engine 1, the fuel injection control and ignition control of engine 1 is started simultaneously at, to open The automatic restarting for originating motivation 1, is then transferred into S20.In addition, when the judgement result of S18 is "No", that is, when above-mentioned Be in S19 start engine 1 automatic restarting after when, be automatically stopped starting portion 82 and tied without the processing of S19~S21 Beam Fig. 4's is automatically stopped/restarting processing automatically.
In S20, it is automatically stopped starting portion 82 and determines whether engine speed is greater than 0.When the judgement result of S20 is "Yes" When, that is, in the case where starting the automatic restarting of engine 1 when engine speed is greater than 0, in order to be explicitly shown the situation The value of restarting mark in rotation is set as " 1 " (referring to S21), then terminate Fig. 4 is automatically stopped/restarting processing automatically. In addition, when the judgement result of S20 is "No", that is, starting the automatic restarting of engine 1 when engine speed is 0 In the case of, the value of restarting mark in rotation is set as " 0 " (referring to S22) in order to which the situation is explicitly shown, then terminates Fig. 4's It is automatically stopped/restarting processing automatically.Mark is the mark for indicating to make the timing of the automatic restarting of engine 1 in the rotation, can To take the value of " 0 " or " 1 ".In the case where automatic restarting engine 1 when engine speed is 0, restarting mark in rotation The value of will is set to " 0 ", in the case where automatic restarting engine 1 when engine speed is greater than 0, restarting in rotation The value of mark is set to " 1 ".
Fig. 5 is the stream for showing the specific steps of inhaled air volume control processing of the inhaled air volume control unit 83 of ECU 8 Cheng Tu.In inhaled air volume control unit 83, the inhaled air volume control processing of Fig. 5 is executed repeatedly with the defined control period.
Firstly, inhaled air volume control unit 83 determines whether the value of I/S mark is " 0 " in S31.When the judgement knot of S31 When fruit is "No", that is, when being that engine 1 is automatically stopped middle, inhaled air volume control unit 83 is transferred to S32.
In S32, inhaled air volume control unit 83 determines whether engine speed is greater than 0.When the judgement result of S32 is When "Yes", that is, for just be automatically stopped engine 1 after and engine speed be not yet reduced to 0 in the case where, inhaled air volume Control unit 83 operates air throttle 33, so that the aperture of air throttle 33 becomes target aperture in predetermined stopping (referring to S33), Terminate the inhaled air volume control processing of Fig. 5.The sucking that target aperture is set so as to obtain as follows in the stopping is empty The aperture of tolerance: the inhaled air volume make automatic restarting engine speed be greater than 0 in the state of engine 1 when hair Motivation 1 crosses over torque (for the torsion for crossing over first compression stroke, being transferred to expansion stroke and being provided to crankshaft 17 Square) it is less than in the torque generated from starter-generator 52 under the electric power that power-supply system 6 supplies.Admission pressure is more reduced, more can Reduce and cross over torque, therefore target aperture is set to substantially 0 degree for example as the fully closed aperture of air throttle 33 in the stopping.
When the judgement result of S32 is "No", that is, after a little time and sent out from being automatically stopped engine 1 In the case that motivation revolving speed is reduced to 0 later, inhaled air volume control unit 83 operates air throttle 33, so that the aperture of air throttle 33 1st target aperture (referring to S34) when as predetermined starting terminates the inhaled air volume control processing of Fig. 5.Here, it rises 1st target aperture is set to be greater than the aperture of target aperture in above-mentioned stopping, i.e. than target aperture in stopping by opening when dynamic Side.In addition, the 1st target aperture is confirmed as when the starting: can obtain for the automatic restarting from engine speed is 0 The inhaled air volume of engine 1 and needs.
Therefore, it is handled according to the inhaled air volume control of Fig. 5, is being automatically stopped/restarting processing automatically from using Fig. 4 During being automatically stopped until engine 1 plays engine speed and becomes 0,33 absorbed air control unit 83 of air throttle dimension It is substantially fully closed for holding.In addition, starting from being automatically stopped engine 1 using being automatically stopped of Fig. 4/automatic restarting processing After machine revolving speed becomes 0, air throttle 33 maintains the 1st target aperture at the start by inhaled air volume control unit 83.
In addition, when the judgement result of S31 is "Yes", that is, when engine 1 is not to be automatically stopped middle, inhaled air volume Control unit 83 is transferred to S41.In S41, inhaled air volume control unit 83 is determined whether to be switched from the value that I/S indicates from " 1 " It is risen to " 0 " after have passed through the defined time.When the judgement result of S41 is "Yes", that is, from using being automatically stopped of Fig. 4/ Automatic restarting handle come automatic restarting engine 1 rise have passed through the defined time after in the case where, inhaled air volume control Portion 83 processed is transferred to S42, executes usually controlling, be transferred to S45 for air throttle 33.In the usual control, inhaled air volume control Portion 83 processed calculates to obtain to the output that engine 1 requires and in the inhaled air volume of the needs of engine 1 and in order to be somebody's turn to do Inhaled air volume and the aperture of the air throttle 33 that needs, it is i.e. usual when target aperture, air throttle 33 is operated, so that air throttle 33 Target aperture when aperture is usual as this.In addition, inhaled air volume control unit 83 makes restarting mark in above-mentioned rotation in S45 The value of will is " 0 ", terminates the inhaled air volume control processing of Fig. 5.
In addition, when the judgement result of S41 is "No", that is, using being automatically stopped of Fig. 4/automatic restarting processing come Not yet by the case where the defined time, inhaled air volume control unit 83 is transferred to S43 after automatic restarting engine 1, Whether the value for determining restarting mark in rotation is " 1 ".When the judgement result of S43 is "Yes", that is, reduced in engine speed In the case where the automatic restarting for starting engine 1 before to 0, inhaled air volume control unit 83 operates air throttle 33, so that section 2nd target aperture (referring to S44) when the aperture of valve 33 becomes predetermined starting terminates the inhaled air volume control of Fig. 5 Processing.Here, the aperture of the 1st target aperture when the 2nd target aperture is set to be greater than above-mentioned starting when starting, i.e. compared with it is dynamic when 1st target aperture leans on opening side.
In addition, when the judgement result of S43 is "No", that is, start engine 1 after engine speed is reduced to 0 In the case where automatic restarting, inhaled air volume control unit 83 is transferred to S34, air throttle 33 is operated, so that air throttle 33 is opened 1st target aperture when degree becomes above-mentioned starting terminates the inhaled air volume control processing of Fig. 5.
Therefore, it is handled according to the inhaled air volume control of Fig. 5, is automatically stopped/restarting processing automatically using Fig. 4 working as In the case where after engine speed is reduced to 0 when starting the automatic restarting of engine 1, air throttle 33 is by inhaled air volume control Portion 83 processed maintains the 1st target aperture at the start.In addition, starting to send out when using being automatically stopped of Fig. 4/automatic restarting processing In the case that engine speed is not yet reduced to 0 when the automatic restarting of motivation 1, air throttle 33 is by inhaled air volume control unit 83 Maintain compared with it is dynamic when the 1st target aperture lean on opening side starting when the 2nd target aperture.
Fig. 6 is the timing diagram for showing the control example of ECU 8.Fig. 6 successively shows I/S mark since upper section, engine turns Speed, the aperture of air throttle 33 and admission pressure.In addition, in fig. 6, it is illustrated that following situation: I/S mark value moment t0 from " 0 " is switched to " 1 ", then, the value that I/S indicates is switched to " 0 " from " 1 " in moment t2.
Firstly, the value of I/S mark becomes in response to being determined as the case where automatic stop condition is set up from " 0 " in moment t0 More " 1 " (referring to the S2, S3 of Fig. 3).It is automatically stopped starting portion 82 as a result, and is determined as that being automatically stopped for engine 1 is requested It generates, to stop the fuel injection control and ignition control of engine 1, starts being automatically stopped (referring to Fig. 4's for engine 1 S12, S13).Therefore, after the time t theta, engine speed gradually decreases.In addition, inhaled air volume control unit 83 in response to Being automatically stopped request the case where having generated of moment t0 engine 1 and by the aperture of air throttle 33 be set as than it is usual when target open Degree target aperture (being more specifically fully closed) in the stopping of close side (referring to the S32, S33 of Fig. 5).As a result, in moment t0 Later, admission pressure reduces.In addition, as shown in fig. 6, starting in moment t1 from being automatically stopped engine 1 in moment t0 and play Machine revolving speed become 0 until during, inhaled air volume control unit 83 by the aperture of air throttle 33 maintain stopping in target aperture.
Then, in moment t1, inhaled air volume control unit 83 after moment t0 is automatically stopped engine 1 in response to starting The case where machine revolving speed is reduced to 0 and by the aperture of air throttle 33 from stopping target aperture be changed to start when the 1st target aperture (referring to the S32, S34 of Fig. 5).As a result, after the time tl, admission pressure is begun to ramp up.
Then, in moment t2, the value of I/S mark in response to be judged as the case where automatic restarting condition is set up and from " 1 " is changed to " 0 " (referring to the S4, S5 of Fig. 3).It is automatically stopped starting portion 82 as a result, and is determined as that the automatic restarting of engine 1 is asked It asks and has generated, to start the automatic restarting of engine 1 (referring to the S18, S19 of Fig. 4).More specifically, it is automatically stopped Starting portion 82 carries out the Kick-start of engine 1 by supplying electric power from power-supply system 6 to starter-generator 52, passes through simultaneously Fuel injection control and ignition control are carried out to start the automatic restarting of engine 1.In addition, in moment t2, air throttle 33 Aperture target when being maintained at the aperture needed to start engine 1, i.e. starting from engine speed is 0 Aperture.Therefore, after the time t 2, since the air of the amount needed to start engine 1 is supplied immediately to engine 1, therefore engine 1 can be started rapidly, engine speed is begun to ramp up.
In addition, I/S mark value after moment t2 is changed to " 0 " from " 1 ", in moment t3, inhaled air volume control unit 83 in response to have passed through the defined time the case where and start the usual control of air throttle 33 (referring to the S41, S42 of Fig. 5).
Fig. 7 is the timing diagram for showing the control example of ECU 8.Fig. 7 successively shows I/S mark since upper section, engine turns Speed, the aperture of air throttle 33 and admission pressure.In addition, in FIG. 7, it is shown that following situation: the value of I/S mark is in moment t10 It is switched to " 1 " from " 0 ", then, the value that I/S indicates is switched to " 0 " from " 1 " in moment t11.That is, in figure 6 and figure 7, I/S The value of mark is different from the timing that " 1 " is switched to " 0 ".
Firstly, in moment t10, the value of I/S mark is in response to being judged as the case where automatic stop condition is set up and from " 0 " It is changed to " 1 " (referring to the S2, S3 of Fig. 3).It is automatically stopped starting portion 82 as a result, and is determined as that being automatically stopped for engine 1 is requested Through generating, to be automatically stopped engine 1 (referring to the S12, S13 of Fig. 4).Therefore, after moment t10, engine speed by Gradually reduce.In addition, inhaled air volume control unit 83 is in response to being automatically stopped what request had generated in moment t10 engine 1 Situation and by the aperture of air throttle 33 be set as than it is usual when target aperture by close side stopping in target aperture (more specifically It is fully closed) (referring to the S32, S33 of Fig. 5).As a result, after moment t10, admission pressure is reduced.In addition, as shown in fig. 7, from Engine 1 is automatically stopped in moment t10 to play before moment t11, engine speed became 0 until automatic restarting engine 1 During, the aperture of air throttle 33 is maintained target aperture in stopping by inhaled air volume control unit 83.
Then, in moment t11, the value of I/S mark in response to be judged as the case where automatic restarting condition is set up and from " 1 " is changed to " 0 " (S4 of Fig. 3, S5).It is automatically stopped starting portion 82 as a result, and has been determined as the automatic restarting request of engine 1 Through generating, to start the automatic restarting of engine 1 (referring to the S18, S19 of Fig. 4).In addition, in the example in figure 7, automatically T11 is generated at the time of restarting request is before engine speed is reduced to 0, and thus the value of restarting mark is set in rotation For " 1 " (referring to the S20, S21 of Fig. 4).
In addition, as referring to as being illustrated Fig. 8, before engine speed becomes 0 after being automatically stopped engine 1 In the case where automatic restarting engine 1, it is greater than from engine speed is 0 required by starter-generator 52 across torque Torque is crossed over required by starter-generator 52 when automatic starting engine 1.In contrast, in the present embodiment, from Moment t10 is automatically stopped engine 1 and plays before moment t11, engine speed became 0 until automatic restarting engine 1 The aperture of air throttle 33 is maintained target aperture in stopping by period, and target aperture is confirmed as in the stopping: so that across Torque is less than the torque that starter-generator 52 generates.In other words, from moment t10 be automatically stopped engine 1 play when During carving t11 engine speed and becoming before 0 until automatic restarting engine 1, the control hair of inhaled air volume control unit 83 The inhaled air volume of motivation 1, so that being less than the torque that starter-generator 52 generates across torque when automatic restarting.Therefore, In moment t11, even if being automatically stopped starting portion 82 can also start restarting automatically in the state that engine speed is greater than 0 Machine 1 is without postponing.
In addition, in moment t11, value quilt of the inhaled air volume control unit 83 in response to restarting mark in rotating as described above The case where being set as " 1 " and by the aperture of air throttle 33 from stopping target aperture be changed to start when the 2nd target aperture, it is described When starting the 2nd target aperture be confirmed as compared with it is dynamic when the 1st target aperture by opening side (referring to Fig. 5 S43, S44).As a result, After moment t11, admission pressure is begun to ramp up.In addition, in order to refer to, being shown in broken lines will save in moment t11 in Fig. 7 It is obtained when the 1st target aperture when the aperture of valve 33 target aperture from stopping in the same manner as the example of Fig. 6 is changed to start The variation of admission pressure.As shown in fig. 7, in the present embodiment, starting in restarting automatic before engine speed becomes 0 When machine 1, by by the aperture of air throttle 33 be changed to compared with it is dynamic when the 1st target aperture lean on opening side starting when the 2nd target open Degree, thus can increase admission pressure immediately after the automatic restarting request of moment t11 engine 1 generates, therefore, The air of required amount can be just rapidly provided in the engine 1 after automatic restarting, wherein the 1st target is opened when the starting Degree is determined to be: can obtain the sucking air needed for the automatic restarting engine 1 from engine speed is 0 Amount.
In addition, the value indicated from I/S in moment t11 from " 1 " is changed to " 0 " ing, in moment t12, inhaled air volume is controlled The case where portion 83 is in response to have passed through the defined time and the usual control for starting air throttle 33 (referring to the S41, S42 of Fig. 5).
More than, an embodiment of the invention is illustrated, still, the invention is not limited thereto.
For example, in the above-described embodiment, illustrate following situation: inhaled air volume control unit 83 passes through operation air throttle 33 control the inhaled air volume of engine 1, so that the engine 1 when automatic restarting is less than starter-generator across torque The torque of generation.But the invention is not restricted to this.Other than using air throttle 33, inlet valve 15, exhaust valve can also be used 16, air inlet side changeable air valve timing lift mechanisms 18i and exhaust side variable valve timing lift mechanisms 19e controls engine 1 inhaled air volume.Inhaled air volume control unit can also be by operating these inlet valves 15, exhaust valve 16, air inlet side as a result, Changeable air valve timing lift mechanisms 18i and exhaust side variable valve timing lift mechanisms 19e is empty come the sucking for controlling engine 1 Tolerance, so that the torque for being less than starter-generator generation across torque of the engine 1 when automatic restarting.
In addition, for example, in the above-described embodiment, illustrating following situation: starting before engine speed is reduced to 0 Inhaled air volume control unit 83 operates air throttle 33 in the case where the automatic restarting of engine 1, so that the aperture of air throttle 33 2nd target aperture when as predetermined starting.But the method for operating air throttle 33 is without being limited thereto.As shown in fig. 7, When restarting, by opening air throttle 33 from closed state, increase (referring to Fig. 7 at the time of t11) admission pressure.Therefore, When starting the automatic restarting of engine 1 before engine speed is reduced to 0, inhaled air volume control unit 83 can also pass through The feedback control of air inlet pressure sensor 43 has been used to operate air throttle 33.That is, starting before engine speed is reduced to 0 When the automatic restarting of engine 1, inhaled air volume control unit 83 can also be by using the anti-of air inlet pressure sensor 43 Feedback control to operate air throttle 33 so that when the admission pressure detected by air inlet pressure sensor 43 becomes restarting target into Atmospheric pressure, when the restarting target inlet air pressure be confirmed as: greater than automatic restarting before (be in the example in figure 7 the moment T11 it is tight before) admission pressure and in order to from engine speed be 0 start engine 1 and need admission pressure.

Claims (5)

1. a kind of control device of internal combustion engine, the control device of the internal combustion engine have:
Starting unit rotates the crankshaft of internal combustion engine;
It is automatically stopped starting unit, is automatically stopped the internal combustion engine in the case where producing and being automatically stopped request, then, In the case where producing automatic restarting request, by driving the starting unit come internal combustion engine described in automatic restarting;
Inhaled air volume adjustment mechanism adjusts the air capacity being inhaled into the internal combustion engine;And
Inhaled air volume control unit controls the sucking of the internal combustion engine by operating the inhaled air volume adjustment mechanism Air capacity,
The control device of the internal combustion engine is characterized in that,
From during being automatically stopped the internal combustion engine and play before revolving speed becomes 0 until the automatic restarting internal combustion engine, institute State inhaled air volume control unit control inhaled air volume so that in automatic restarting in order to make the internal combustion engine from compression rush The torque that journey is transferred to expansion stroke and needs is less than the torque generated by the starting unit.
2. the control device of internal combustion engine according to claim 1, which is characterized in that
The inhaled air volume adjustment mechanism has valve body, which adjusts inhaled air volume by change aperture,
It is played during from being automatically stopped until the internal combustion engine plays revolving speed to become 0 or from the internal combustion engine is automatically stopped During before revolving speed becomes 0 until internal combustion engine described in automatic restarting, the inhaled air volume control unit makes the valve Body is substantially fully closed.
3. the control device of internal combustion engine according to claim 1 or 2, which is characterized in that
The inhaled air volume adjustment mechanism is the air throttle being arranged in charge air flow path,
Before revolving speed becomes 0 in the case where internal combustion engine described in automatic restarting, the inhaled air volume control unit operates institute Air throttle is stated, so that the aperture of the air throttle becomes target aperture, which is relative to being determined to be capable of The aperture of inhaled air volume for starting the internal combustion engine from revolving speed is 0 and needing is set in opening side.
4. the control device of internal combustion engine according to claim 3, which is characterized in that
The control device of the internal combustion engine is also equipped with air inlet pressure sensor, and the air inlet pressure sensor is to as the inlet air flow The admission pressure of pressure in road is detected,
Before revolving speed becomes 0 in the case where internal combustion engine described in automatic restarting, the inhaled air volume control unit operates institute Air throttle is stated, so that target inlet air pressure when becoming restarting by the admission pressure that the air inlet pressure sensor detects, it should Target inlet air pressure is determined to be greater than the air inlet pressure needed to start the internal combustion engine from revolving speed is 0 when restarting Power.
5. the control device of internal combustion engine according to any one of claims 1 to 4, which is characterized in that
The starting unit is to be able to carry out the starting of the internal combustion engine and can utilize the driving generated by the internal combustion engine Power and the starter-generator to generate electricity.
CN201910188641.7A 2018-03-27 2019-03-13 The control device of internal combustion engine Withdrawn CN110307093A (en)

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Application publication date: 20191008